FR2362451A1 - PROCESS AND CIRCUIT FOR PRODUCING A SWITCHING SIGNAL ON THE PASSAGE OF A CONTRAST DISCONTINUITY OF A SUBSTRATE - Google Patents

PROCESS AND CIRCUIT FOR PRODUCING A SWITCHING SIGNAL ON THE PASSAGE OF A CONTRAST DISCONTINUITY OF A SUBSTRATE

Info

Publication number
FR2362451A1
FR2362451A1 FR7721573A FR7721573A FR2362451A1 FR 2362451 A1 FR2362451 A1 FR 2362451A1 FR 7721573 A FR7721573 A FR 7721573A FR 7721573 A FR7721573 A FR 7721573A FR 2362451 A1 FR2362451 A1 FR 2362451A1
Authority
FR
France
Prior art keywords
switching signal
producing
passage
substrate
circuit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR7721573A
Other languages
French (fr)
Other versions
FR2362451B1 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Erwin Sick GmbH Optik Elektronik
Original Assignee
Erwin Sick GmbH Optik Elektronik
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Erwin Sick GmbH Optik Elektronik filed Critical Erwin Sick GmbH Optik Elektronik
Publication of FR2362451A1 publication Critical patent/FR2362451A1/en
Application granted granted Critical
Publication of FR2362451B1 publication Critical patent/FR2362451B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10544—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum
    • G06K7/10821—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum further details of bar or optical code scanning devices
    • G06K7/10851—Circuits for pulse shaping, amplifying, eliminating noise signals, checking the function of the sensing device
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F33/00—Indicating, counting, warning, control or safety devices
    • B41F33/0081—Devices for scanning register marks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/046—Sensing longitudinal register of web

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Artificial Intelligence (AREA)
  • Toxicology (AREA)
  • General Health & Medical Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Image Analysis (AREA)

Abstract

Procédé de production d'un signal au passage d'une discontinuité entre deux champs présentant un contraste par un lieu prédéterminé par rapport à un récepteur comprenant deux cellules photoélectriques dont les sorties sont combinées pour la formation de ce signal de commutation. Le procédé consiste à former la différence des signaux de deux récepteurs photoélectriques 11 et 12 se succédant dans la direction du déplacement et à déterminer leur maximum, à comparer une fraction de ce maximum à la valeur momentanée de la différence et à déclencher le signal de commutation à l'instant auquel cette valeur momentanée est égale à la fraction précitée. Application à la détection et avec précision d'un repère en impression multicolore.Process for producing a signal when a discontinuity passes between two fields exhibiting a contrast at a predetermined location with respect to a receiver comprising two photoelectric cells whose outputs are combined to form this switching signal. The method consists of forming the difference of the signals of two successive photoelectric receivers 11 and 12 in the direction of movement and determining their maximum, comparing a fraction of this maximum with the momentary value of the difference and triggering the switching signal at the instant at which this momentary value is equal to the aforementioned fraction. Application to the detection and with precision of a marker in multicolored printing.

FR7721573A 1976-08-17 1977-07-12 PROCESS AND CIRCUIT FOR PRODUCING A SWITCHING SIGNAL ON THE PASSAGE OF A CONTRAST DISCONTINUITY OF A SUBSTRATE Granted FR2362451A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2636906A DE2636906C3 (en) 1976-08-17 1976-08-17 Method for generating a switching signal when passing through a contrast jump and circuit arrangement for carrying out the method

Publications (2)

Publication Number Publication Date
FR2362451A1 true FR2362451A1 (en) 1978-03-17
FR2362451B1 FR2362451B1 (en) 1984-05-11

Family

ID=5985600

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7721573A Granted FR2362451A1 (en) 1976-08-17 1977-07-12 PROCESS AND CIRCUIT FOR PRODUCING A SWITCHING SIGNAL ON THE PASSAGE OF A CONTRAST DISCONTINUITY OF A SUBSTRATE

Country Status (6)

Country Link
US (1) US4142105A (en)
CH (1) CH618031A5 (en)
DE (1) DE2636906C3 (en)
FR (1) FR2362451A1 (en)
GB (1) GB1581160A (en)
IT (1) IT1081846B (en)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3065583D1 (en) * 1979-06-26 1983-12-22 Ibm Device for determining the optimum scanning angle of printed matter
FR2505524B1 (en) * 1981-05-05 1987-05-15 Smh Adrex BRAND READING AND RECOGNITION SET
US4406545A (en) * 1981-05-07 1983-09-27 Western Electric Company, Inc. Methods of and apparatus for measuring surface areas
JPS5831662A (en) * 1981-08-19 1983-02-24 Fuji Photo Film Co Ltd Method and appratus for front edge detection for scanned sheet
CA1197927A (en) * 1981-10-01 1985-12-10 Richard G. Van Tyne Document processing system and equipment
DE3147035C1 (en) * 1981-11-27 1989-10-12 Ingenieurbüro Rudolf Weber KG, 6100 Darmstadt Detector for registering marks
JPS58130841A (en) * 1982-01-29 1983-08-04 Nec Corp Luminescent mark detection device
JPS58173408A (en) * 1982-04-05 1983-10-12 Mitsutoyo Mfg Co Ltd Edge detector in optical measuring apparatus
US4500968A (en) * 1982-06-29 1985-02-19 Domtar Inc. Paper machine wet line control
US4528630A (en) * 1982-09-14 1985-07-09 Oao Corporation Automatic registration control method and apparatus
DE3239938A1 (en) * 1982-10-28 1984-05-03 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Method for recognition, identification and/or quality control of objects
DE3310201C2 (en) * 1983-03-21 1985-01-24 Siemens AG, 1000 Berlin und 8000 München Circuit arrangement for optical handheld readers for detecting the bar code edges of a bar code to be scanned
DE3328168A1 (en) * 1983-08-04 1985-02-21 Goetze Ag, 5093 Burscheid Method and device for determining position, in particular of parting lines
US4683380A (en) * 1985-11-06 1987-07-28 Eastman Kodak Company Apparatus and method for detecting a perforation on a web
JP2603616B2 (en) * 1986-06-02 1997-04-23 オムロン株式会社 Reflective photoelectric switch
GB8710021D0 (en) * 1987-04-28 1987-06-03 Crosfield Electronics Ltd Monitoring passage of marks on web
US4827141A (en) * 1987-10-26 1989-05-02 Hughes Aircraft Company Subresolution element spatial measurement technique
CH680117A5 (en) * 1989-07-15 1992-06-30 Bobst Sa
DE4013507C2 (en) * 1990-03-03 1995-04-06 Bayerische Mas Ind Arno Keller Container with liquid
US5107127A (en) * 1990-08-13 1992-04-21 Eastman Kodak Company Method and apparatus for precision location of a perforation
US5086219A (en) * 1990-11-30 1992-02-04 California Institute Of Technology Circuit for detecting discontinuities in light intensity including two independent resistive networks
GB9026087D0 (en) * 1990-11-30 1991-01-16 Crosfield Press Controls Ltd Register mark identification
DE19520242C2 (en) * 1995-06-02 2002-07-18 Abb Patent Gmbh Device for motion detection with at least one optoelectric sensor for detecting light rays from a room area to be monitored
JP3547111B2 (en) * 1997-10-07 2004-07-28 株式会社ミマキエンジニアリング A cutting plotter having a registration mark reading device for cutting a sealing material and a method for reading the registration mark for cutting a sealing material using the cutting plotter.
EP1725487A2 (en) * 2004-01-30 2006-11-29 ZIH Corp. Self calibrating media edge sensor
DE102009035006B4 (en) * 2008-09-08 2019-06-06 Heidelberger Druckmaschinen Ag Intensity optimized check mark measurement
AT515932B1 (en) * 2014-10-27 2016-01-15 Bernecker & Rainer Ind Elektronik Gmbh Method and device for detecting a printed mark

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3461303A (en) * 1966-12-14 1969-08-12 Ibm Variable threshold amplifier with input divider circuit
DE2152732A1 (en) * 1971-10-22 1973-04-26 Sick Erwin METHOD AND DEVICE FOR EXACTLY DETERMINING THE CURRENT POSITION OF A STRAIGHT CONTRAST JUMP MOVING IN ESSENTIAL VERTICAL TO ITS DIRECTION
DE2237811A1 (en) * 1972-07-12 1974-01-31 Licentia Gmbh ARRANGEMENT FOR SCANNING MARKERS ON MOVING RECORDING MEDIA
FR2292288A1 (en) * 1974-11-20 1976-06-18 E Systems Inc OPTICAL READER CORRELATION CIRCUIT

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1774180B1 (en) * 1968-04-26 1970-01-22 Sick Erwin Arrangement for the opto-electronic identification of a moving body
DE2015694B2 (en) * 1970-04-02 1971-11-11 Exatest Meßtechnik GmbH, 5090 Le verkusen METHOD OF CONTACTLESS MEASUREMENT OF THE WIDTH OR POSITION OF AN OBJECTIVE BY MEANS OF A VISUAL BEAM
GB1336008A (en) * 1970-11-30 1973-11-07 Decca Ltd Detecting systems
DE2153910C3 (en) * 1971-10-29 1974-10-17 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Arrangement for evaluating the output signal of an optical measuring device
US3907439A (en) * 1973-08-14 1975-09-23 Zygo Corp Edge-sensing with a scanning laser beam
DE2434829C3 (en) * 1974-07-19 1978-11-09 Erwin Sick Gmbh Optik-Elektronik, 7808 Waldkirch Light electronic device for measuring the length or width of an object

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3461303A (en) * 1966-12-14 1969-08-12 Ibm Variable threshold amplifier with input divider circuit
DE2152732A1 (en) * 1971-10-22 1973-04-26 Sick Erwin METHOD AND DEVICE FOR EXACTLY DETERMINING THE CURRENT POSITION OF A STRAIGHT CONTRAST JUMP MOVING IN ESSENTIAL VERTICAL TO ITS DIRECTION
DE2237811A1 (en) * 1972-07-12 1974-01-31 Licentia Gmbh ARRANGEMENT FOR SCANNING MARKERS ON MOVING RECORDING MEDIA
FR2292288A1 (en) * 1974-11-20 1976-06-18 E Systems Inc OPTICAL READER CORRELATION CIRCUIT

Also Published As

Publication number Publication date
US4142105A (en) 1979-02-27
FR2362451B1 (en) 1984-05-11
DE2636906B2 (en) 1978-06-08
CH618031A5 (en) 1980-06-30
DE2636906A1 (en) 1978-02-23
IT1081846B (en) 1985-05-21
GB1581160A (en) 1980-12-10
DE2636906C3 (en) 1983-12-29

Similar Documents

Publication Publication Date Title
FR2362451A1 (en) PROCESS AND CIRCUIT FOR PRODUCING A SWITCHING SIGNAL ON THE PASSAGE OF A CONTRAST DISCONTINUITY OF A SUBSTRATE
Mueller Calculation procedures for differential propagation phase shift((for meteorological radar))
GB1292289A (en) Improvements in or relating to berthing displays for marine craft
JPS56116326A (en) Conversion circuit
GB802733A (en) Improvements in or relating to apparatus for detecting and measuring the speed of moving objects by means of radio waves
GB1419563A (en) Traffic-measuring systems
GB1451990A (en) Apparatus producing an electrical signal related to the concentration of a solution
GB1533935A (en) Tracking devices
JPS55117977A (en) Gps gyroscope
JPS5228207A (en) Indicator driving circuit
JPS5329609A (en) Detecting circuit for data signal
JPS5525146A (en) Magnetic card collation device
JPS53121495A (en) Target follwing system
JPS5323257A (en) Phase difference detection circuit
JPS52149097A (en) Traffic information measuring system
JPS522474A (en) System for measuring passing speed and width of vehicle
SU471537A1 (en) The method of measuring the velocity of the current on the ship
JPS545335A (en) Detection system of magnetic bubble
JPS5327459A (en) Measuring system for change-over time of trolley line
JPS5242746A (en) Process for assorting the kind of automobiles
JPS5466363A (en) Control device for rolling
JPS55151276A (en) Inductive radio detection system for position of traveling body
JPS522548A (en) Method of detecting displacement of center hole of punch-out product
JPS5399715A (en) Video signal processing circuit
JPS56168451A (en) Receiver of am stereophonic broadcast

Legal Events

Date Code Title Description
ST Notification of lapse